Ononot — If A = \begin{pmatrix} 1 \\ 2 \end{pmatrix} and B = \begin{p

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Matriceshard

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If $A = \begin{pmatrix} 1 \\ 2 \end{pmatrix}$ and $B = \begin{pmatrix} 3 & 4 \end{pmatrix}$ , what is the rank of the matrix $P = AB$ ?